Nexperia USA Inc. PCMF2USB3B/CZ

Overview

PCMF2USB3B/C from Nexperia is a dual-channel common-mode EMI filter with integrated bidirectional ESD protection for high-speed differential interfaces. It provides ±20 kV IEC 61000-4-2 contact discharge protection per line, <2.6 Ω channel series resistance, 0.3 pF diode capacitance at 1 MHz, and 8.1 GHz differential -3 dB bandwidth-enabling clean signal integrity in USB 3.2 Gen 2 (10 Gbps) and HDMI 2.0 (6 Gbps) applications.

For engineers reviewing the PCMF2USB3B/C datasheet, PCMF2USB3B/C pinout, PCMF2USB3B/C application, or PCMF2USB3B/C equivalent, key selection criteria include differential insertion loss (<−1 dB up to 5 GHz), common-mode rejection (>−20 dB from 100 MHz to 3 GHz), ultra-low inter-pair skew (<0.8 ns), and WLCSP10 package compatibility with fine-pitch USB Type-C PCB routing.

Technical Context

The device integrates two independent differential channels, each with magnetically coupled coils for common-mode attenuation and low-capacitance silicon diodes for bidirectional clamping. Its symmetric layout ensures <0.1% impedance mismatch between CH1_IN+/CH1_IN− and CH2_IN+/CH2_IN− pairs, preserving differential signal fidelity.

Clamping behavior follows snap-back dynamics with 0.22 Ω dynamic resistance under TLP stress, reducing clamping voltage during ESD transients. The WLCSP10 package uses 4-2-4 bump configuration with isolated ground terminals (B1, B2) and no internal connection between them-requiring separate PCB ground vias per channel.

Key Specifications

Pinout & Package

PCMF2USB3B/C uses the WLCSP10 (4-2-4) wafer-level chip-scale package: 1.62 mm × 1.52 mm footprint, 0.42 mm nominal height, 0.31 mm bump pitch, with solder lands sized 0.25 mm × 0.25 mm and recommended 0.1 mm stencil thickness.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-channel differential ESD/EMI filtering applications.

Compared with TPD2EUSB30DR and IP4283CZ10, PCMF2USB3B/C delivers superior high-frequency performance (8.1 GHz vs. ≤4.5 GHz), lower parasitic capacitance (0.3 pF vs. ≥0.5 pF), and optimized dual-channel integration-making it the preferred solution for space-constrained, 10 Gbps–capable designs where signal fidelity and ESD margin are co-critical.

Availability

PCMF2USB3B/C is available at Aetrix Electronics and suitable for USB 3.2 Gen 2 host ports, HDMI 2.0 source interfaces, and MIPI D-PHY camera modules requiring stable component supply across high-volume consumer electronics production.

Supply support for PCMF2USB3B/C includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance logic, analog, and ESD protection devices for mobile, computing, and automotive markets.

PCMF2USB3B/C belongs to Nexperia's PCMFxUSB3B/C series of integrated EMI/ESD filters-designed specifically to replace discrete choke+diode solutions in high-speed differential interfaces while meeting stringent USB/HDMI signal integrity and IEC 61000-4-2 compliance requirements.

FAQ

What is the maximum data rate supported by PCMF2USB3B/C?

PCMF2USB3B/C supports differential signaling up to 10 Gbps, validated via USB 3.2 Gen 2 eye diagrams showing >75% opening at 10 Gbps with the device installed. Its 8.1 GHz −3 dB bandwidth provides 1.6× headroom over the 5 GHz Nyquist frequency of 10 Gbps NRZ signaling, ensuring minimal intersymbol interference.

How should GND_CH1 and GND_CH2 be connected on the PCB?

GND_CH1 (B1) and GND_CH2 (B2) must connect to separate low-inductance ground vias tied to the same solid ground plane-never daisy-chained or shorted together on-die. Each via should be ≤0.3 mm from its respective bump, with ≥2 additional stitching vias within 2 mm to minimize ground loop inductance during ESD transients.

Does PCMF2USB3B/C require external bias or control signals?

No. PCMF2USB3B/C is a passive, always-active device with no power pins, enable inputs, or configuration interfaces. It operates transparently across −4 V to +4 V DC common-mode range and requires zero external components-only proper PCB layout per the WLCSP10 footprint guidelines in Figures 24 and 21 of the datasheet.

Can PCMF2USB3B/C be used for DisplayPort 1.4 applications?

Yes. With its 8.1 GHz bandwidth and <−1 dB insertion loss up to 6 GHz, PCMF2USB3B/C meets DisplayPort 1.4 HBR3 (8.1 Gbps) requirements. Application Note AN11787 confirms successful DP 1.4 eye compliance using this device on source-side lanes, provided trace lengths from C1–C4 to the DP PHY remain ≤15 mm.